Official Title: Phase II Trial of GW572016 in Patients With Recurrent Prostate Cancer as Evident by a Rising PSA
Status: COMPLETED
Status Verified Date: 2014-06
Last Known Status: None
Delayed Posting: No
If Stopped, Why?: Not Stopped
Has Expanded Access: False
If Expanded Access, NCT#: N/A
Has Expanded Access, NCT# Status: N/A
Acronym: None
Brief Summary: This phase II trial studies how well lapatinib ditosylate works in treating patients with a rising prostate-specific antigen PSA a protein made by the prostate gland indicating that prostate cancer has come back after previous treatment Lapatinib ditosylate may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth and may delay or prevent the progression of prostate cancer
Detailed Description: PRIMARY OBJECTIVES
I To evaluate the percentage of patients with hormone sensitive prostate cancer who experience 50 decline in serum PSA during treatment with GW572016 lapatinib ditosylate
SECONDARY OBJECTIVES
I To evaluate the duration of PSA decline II To characterize the change in PSA slope with GW572016 III To characterize the safety and tolerability of GW572016 in this patient population
IV To estimate the time to progression TTP and progression-free survival at 2 years from start of therapy
V To evaluate the correlation of epidermal growth factor receptor EGFR expressionsignaling from available prostate biopsy specimens or prostatectomy blocks and its relationship to change in PSA in patients treated with GW572016
OUTLINE
Patients receive lapatinib ditosylate orally PO daily on days 1-28 Courses repeat every 28 days in the absence of disease progression or unacceptable toxicity
After completion of study treatment patients are followed up every 3 months if patient is 2 years from study entry every 6 months if patient is 2-5 years from study entry or every year if patient is 5-10 years from study entry for 10 years